Arknights Welfare CC#1, Rotating Test Site 3, Reward #1 Clear

Contingency Contract #1 Pyrolysis, Rotating Test Site Bolivar: Beach Repair, Reward #1 Standard Aptitude Test (complete operation with score of 200) Cleared using only Welfare Operators.
So, I completely avoided the Deployment Limit is 1 Contract. I basically generated a kill zone around the top approach to the gate. I had Tachanka and Folinic help out with some of the Guerrilla Shieldguards as long as they could hold out. I also let Lessing and Robin (using her traps liberally) deal with the right side approach to the gate, changing Robin out for Folinic as soon as she was available again. I had to tweak the main kill zone to switch from DP generation to damage when the Shieldguards approached. And I had to time position/replacement of operators to coincide with Tequila's skill, so he could deal with as many operators as possible, without letting anyone leak through on his off-skill time. Check it out.
Welfare operators are as defined at:
arknights.wiki...
wiki/Operator/Welfare.
Comments and advice are always appreciated.